[U-Boot] [PATCH v4 3/3] cmd: mdio: Add new parameter to access MMD PHY registers

[Carlo Caione]

On 24/01/2019 20:12, Vladimir Oltean wrote:
> 
> I still think I haven't successfully made my point.
> If "mdio read 3.1" is a C45-only thing, "mdio read 1" is a C22-only
> thing, then why do you need a new command "mdio rmmd 3.1" to do C45
> emulation over C22? Is there any overlap I'm missing that mandates a new
> syntax to differentiate? Can the command not simply see whether the PHY
> is C22, and if it is and the MMD address is non-zero, just emulate it
> via 0xd and 0xe writes?

Ok, I got your point now. I didn't give much thought on this TBH, good 
question.

Do we currently have a way in U-Boot to differentiate between C22 and 
C45 PHYs? The generic_10g PHY should be C45 but is that the only one 
currently supported?

--
Carlo Caione